Vitamin B12 (Methylcobalamin)
Active form of B12 essential for nerve function, DNA synthesis, and energy production.
VitaminsMorningStrong Evidence
Mechanism of Action
Cofactor for enzymes involved in DNA synthesis, fatty acid metabolism, and nerve cell function. Methylcobalamin is the neurologically active form.
Dosing
- Recommended Range
- 500-2000 mcg
- Optimal Timing
- Morning
- Evidence Level
- Strong
Safety Information
Interactions
- Metformin reduces B12 absorption
- PPIs may reduce absorption
Contraindications
- Leber's disease
Comprehensive Information
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Key Benefits
Natural Food Sources
Optimal Timing & Absorption
Signs of Deficiency
Synergistic Supplements
Practical Tips
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